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opsin
opsonic
opsonic index
opsonify
opsonin
opsonize
-opsy
opt
opt.
opt-in e-mail
opt out
opt-out
optative
optic
optic axis
optic chiasma
optic cup
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opt.
opt.


abbr 
Definition:
 
1. grammar optative
2. optics optical
3. ophthalmology optician
4. optics optics
5. optimum
6. optional
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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